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<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
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<script>
    password=prompt("请输入您的密码");
    if(password=="666666"){
        alert("密码正确");
        flag=true;
    }else{
        alert("密码错误");
    }
   
</script>
 <a href="../第一章.html">返回第一章</a>
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